Shock-absorber for vehicles.



P. G, KGELBR. SHOCK ABSORBER FOR VEHICLES.

APPLIGATION FILED JAN. 15, 1908.

Patented Dec.28,1909.

2 SHEETS-SHEET l.

F. G. KOEHLER.

SHOCK ABSORBBR FOB. VEHICLES.

APPLICATION FILED JAN.15, 190s.

944,675. i Patented Dec. s, 1909.

2 SHEETS-SHEET 2.

einem.

A cierren erstens reorientar .einen -rnANK-GQKOEHLER, orsr'lvr'iour'sgmrssounr 'A snoek-Anwesen ron VEHICLES' To all whom it may concern.: ,y

Be it known that I, FRA-N1; G. I-0EHLER, a citizen of the United Statesof America, residing .in the cityv of St. Louis and State of Missouri, have invented certain new and useful Improvements 1nv Slioclr-Absorbers for Vehicles, of which the .following isa.

full, clear, and exact` description, reference.y being had to the accompanylng dra.w1ng,

forming part of thisspecification.

My invention ,relates to that character of devices utilized in vehicles for the purpose of minimizing thetransference of shocks from the ground wheels of the vehiclesto the body frames thereof.

Cross reference is made to my co-pending' application filedof. even date herewith, Se-

rial Number 410910.l i y y Figure I isV in part an elevation and part-a vertical longitudinal section of a ve hicle having i'ny shoclgabsorbing device inf. corporated therein. Fig.l II is anenlarged topor plan view of one of the shock absorbing devices. Fig. IIIl is in part an enn` larged elevation and in part a vertical sec-l tion of one of the shock absorbingv devices.

Fig. IVis a. vertical cross section takenolr line IV--IV, Fig. III. Fig. Vis an elevation of the central portion of. the shock absorbing device .and illustrating a modification. Fig. VI is a 'view similar to Fig. III,`

illustrating another modification. l

In the accompanyingdrawings, and hav: ing reference first to Figs. I to IV inclusive: l designates the ground wheels of a vehicle, 2 the vehicle'body frame and 3 the vehicle axles. The axles 3 are provided'with bearing lugs 4, which are-preferably integral with the axle and are preferably located near the ground wheels by which the axles 4 are supported.

A designates bearers that serve as supports for the body frame 2 and which comprise outer arms 5 of laminated spring type that are connected to the body frame by links G. The bearers A also comprise inner bearer members .7 having lower arms that are united to the lugs 4L carried by the axle through the medium of pivot bolts 8, thus providing for a rocking motion of the bearers. The upper arms of the inner bearer members to which the inner ends of the arm `5 of the bearers are attached, are provided with laterally extending` spring seat extensions@ offset from the arms 5 and each inner bearer arm is therefore provided with two Speciflcation of Letters Patent. :Prymje l D, QSQQ; application iedaanury 15, 1908. sel-iai uaemeoef suclrspriiig seat .eXtllSiQii ion sprinpgs'gseated against the springseat ,exten.s l'igmsl7 y. ion springs Aare.heldatfthle position stated by spring-seat vcaps 1l, that bear ngai'ust x tli`eirouter` ends and by` rods 12j yi of sectional form Vwlricll'xten yllongitudljf naljly ofthe shockj absorbing devcfe, throughy the spring seat extensioma tliecushion 65 springs'andthe springgseatcaps .f ends of the rods 12 .are. ,.tlireadec e spring seat caps withthe cushionuspr gs confined between them `antlthef.spring seat extensions are held in ,pla'ceby retaining 70 -nuts 13 fitted to said rods. iilietnieen/-ftlie s1n'ing seat extensions 9 .are talrefuiipsprings le ofrless strengththan the cushionfsprings 1Q, these .take-upy springs. being..located therefor. l .l .When, in the use of va vehicle cont-ak one or more jofv my shock;absorbingdevicesg a blow is deliveredto thge ground. wliejel of v the vehicle, the force of.. such .blow-@is transf. imitted. to theaxle mounted iin-,said lwheel I*and from said ,axletoa the lowerarms of the 'l ,bearers A.. The forceof-jtlieblowyacts. Yto `lelevatethe innerends of the bearersfdueto :the resistance afforded bythe'body. frame-2, 85 and, as a consequence the forceofsucli,blow ,-1,2 is transmitted-v through theinner members of the bearers .tothe cushion-springs l10,. therebycausing the `cushion.springsio :be 'partially compressed between; thespringsea't 90 vextensions vand the;springbseatraps lliir which action .they .reduce the vforce lof they blow thathas been received lthe ground.. wheel and transmittedto the bearersA. Asv afresult.4 thefull v force of` a blow. .is prevented from beigtransmitted to the body frame 2, and the only effect of the blow upon the body frame is an easy rise and fall motinn, due to the absorption of the `force of the Y blow by the cushion springs. The take-up springs lll act as a medium for receiving the inner ends of the bearers A upon rebound thereof, due to reaction of the cushion springs and these take-up springs therefore serveas equaliz'ers to maintain the cushion'105 springs in active condition. er

In F ig'. V, I have shown a modification in which the inner bearer members 7 are provided with single spring seat extensions 9' and in which only a single cushion'spring 1lb 10 is utilized in conjunction with cach bearer A, instead of a pair of cushion "s rings. lIn this modification the extensions 9 project u wardly from the inner bearer members an a single take-upv spring 14: is interposed betwe'en said extensions.

In the modification illustrated in Fig. VI,

the bearers A2 are of solid forni and the outer arms andinner members of said bearers larefilicorporated. therein by making the bearers of Lshape Each bearer is provided at its innerend above its point ot pivotal vsupport with a pair of spring seats 91 against Lfranie and axle, of a pair of bearers having pivotal connection with said body frame at their'outer ends, pivoted to said axle at their inner ends and having spring seats, a cushion spring held'to the spring seat of one of said bearers, and a take-up spring inter-v posed between tlie spring seats of said pair of bearers, substantially as set forth. v

2. In a shock 'absorbing devicefor vehicles, the combination with a vehicle body frame and axle, of `a pair of bearers having pivotal connection with said body frame at their outer ends, pivoted to said axle at their inner ends and having spring seats, cushion springs held against the outer sides'ot' said" spring seats, and a take-up spring inter osed between the spring seats of said pair of earers, substantially as set forth.

3.fIii a shock- "absorbing device for vehicles, the combination with a vehicle body frame and axle, of a pair of bearers having 4pivotal connection with said body :traine at their oute'rends, pivoted to said axle at their inner ends andhaving spring seats located above the points of pivotal connection of the bearers to said axle, a cushion spring held to a spring seat of one of said bearers above said point of pivotal connection, and a takenp spring interposed between 'the spring Vseats of said pair of bearers, substantially as set. forth.

fit; In a hicles, the frame and pivotal connection with said body7 frame at their outer ends, pivoted to said axle at their inner ends and having spring seats located above the points of pivotal connection of the bearers to said axle` a pair of cushion springs held to the. outer sides o't'A .said spring seats above said point of pivotal connection, and a take-up spring interposed be-' tween the spring seats of said pair of bearers, substantially. as set forth.

In a shock absorbing device for vesliock absorbing device :t'or vccoinbniation with a vehicle body liicles, the combination with a vehicle body traine and axle, ot' a pair of bearers having` pivotal connection with said body traine at their outer ends, pivoted to said axle at their inner ends and having spring seats located above the points of pivotal connection of the bearers to sa id axle, a rod extending through said spring seats, spring seat caps fitted to said rod, and cushion springs located between said spring seat calps and spring seats, sul'istantially as set foi-t 6. In a shock absorbing device for vehicles, the combination with a vehicle body franie and axle, of a pair ot' bearers having pivotal connection with said body frame at their outer ends, pivoted to said axle at their inner ends and having spring seats located above; the points ot pivotal connection of the bearers. to said axle, a rod extending through said spring seats, spring-seat caps tted to said rod, cushion springs located between said spring seat caps and spring seats, and a take-up spring interposed between said spring seats, substantially as set. t'orth.

FRANK G. KOEHLER. In the presence of BLANCHE HOGAN,

axle, ot a pair of bearers having" 

